87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/* Implementation of the dtime intrinsic.
|
|
Copyright (C) 2004-2015 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU Fortran runtime library (libgfortran).
|
|
|
|
Libgfortran is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 3 of the License, or (at your option) any later version.
|
|
|
|
Libgfortran is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
Under Section 7 of GPL version 3, you are granted additional
|
|
permissions described in the GCC Runtime Library Exception, version
|
|
3.1, as published by the Free Software Foundation.
|
|
|
|
You should have received a copy of the GNU General Public License and
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include "libgfortran.h"
|
|
#include "time_1.h"
|
|
#include <gthr.h>
|
|
|
|
#ifdef __GTHREAD_MUTEX_INIT
|
|
static __gthread_mutex_t dtime_update_lock = __GTHREAD_MUTEX_INIT;
|
|
#else
|
|
static __gthread_mutex_t dtime_update_lock;
|
|
#endif
|
|
|
|
extern void dtime_sub (gfc_array_r4 *t, GFC_REAL_4 *result);
|
|
iexport_proto(dtime_sub);
|
|
|
|
void
|
|
dtime_sub (gfc_array_r4 *t, GFC_REAL_4 *result)
|
|
{
|
|
GFC_REAL_4 *tp;
|
|
long user_sec, user_usec, system_sec, system_usec;
|
|
static long us = 0, uu = 0, ss = 0 , su = 0;
|
|
GFC_REAL_4 tu, ts, tt;
|
|
|
|
if (((GFC_DESCRIPTOR_EXTENT(t,0))) < 2)
|
|
runtime_error ("Insufficient number of elements in TARRAY.");
|
|
|
|
__gthread_mutex_lock (&dtime_update_lock);
|
|
if (gf_cputime (&user_sec, &user_usec, &system_sec, &system_usec) == 0)
|
|
{
|
|
tu = (GFC_REAL_4) ((user_sec - us) + 1.e-6 * (user_usec - uu));
|
|
ts = (GFC_REAL_4) ((system_sec - ss) + 1.e-6 * (system_usec - su));
|
|
tt = tu + ts;
|
|
us = user_sec;
|
|
uu = user_usec;
|
|
ss = system_sec;
|
|
su = system_usec;
|
|
}
|
|
else
|
|
{
|
|
tu = -1;
|
|
ts = -1;
|
|
tt = -1;
|
|
}
|
|
|
|
tp = t->base_addr;
|
|
|
|
*tp = tu;
|
|
tp += GFC_DESCRIPTOR_STRIDE(t,0);
|
|
*tp = ts;
|
|
*result = tt;
|
|
__gthread_mutex_unlock (&dtime_update_lock);
|
|
}
|
|
iexport(dtime_sub);
|
|
|
|
extern GFC_REAL_4 dtime (gfc_array_r4 *t);
|
|
export_proto(dtime);
|
|
|
|
GFC_REAL_4
|
|
dtime (gfc_array_r4 *t)
|
|
{
|
|
GFC_REAL_4 val;
|
|
dtime_sub (t, &val);
|
|
return val;
|
|
}
|